The existing code is essentially
free_initmem_default()->free_reserved_area() without poisoning.
Note that existing code missed to update the managed page count of the
zone.
Cc: Andrew Morton <a...@linux-foundation.org>
Cc: Guo Ren <guo...@kernel.org>
Cc: Mike Rapoport <r...@kernel.org>
Cc: Oscar Salvador <osalva...@suse.de>
Cc: Michal Hocko <mho...@kernel.org>
Cc: Wei Yang <richard.weiy...@linux.alibaba.com>
Signed-off-by: David Hildenbrand <da...@redhat.com>
---
Not compile tested as documentation on how to get
https://gitlab.com/c-sky/buildroot
running, especially with a custom kernel, is a bit sparse.
---
arch/csky/mm/init.c | 17 +----------------
1 file changed, 1 insertion(+), 16 deletions(-)
diff --git a/arch/csky/mm/init.c b/arch/csky/mm/init.c
index 81e4e5e78f38..894050a8ce09 100644
--- a/arch/csky/mm/init.c
+++ b/arch/csky/mm/init.c
@@ -110,24 +110,9 @@ void __init mem_init(void)
mem_init_print_info(NULL);
}
-extern char __init_begin[], __init_end[];
-
void free_initmem(void)
{
- unsigned long addr;
-
- addr = (unsigned long) &__init_begin;
-
- while (addr < (unsigned long) &__init_end) {
- ClearPageReserved(virt_to_page(addr));
- init_page_count(virt_to_page(addr));
- free_page(addr);
- totalram_pages_inc();
- addr += PAGE_SIZE;
- }
-
- pr_info("Freeing unused kernel memory: %dk freed\n",
- ((unsigned int)&__init_end - (unsigned int)&__init_begin) >> 10);
+ free_initmem_default(-1);
}
void pgd_init(unsigned long *p)
--
2.29.2
